2620253 has 2 divisors, whose sum is σ = 2620254. Its totient is φ = 2620252.

The previous prime is 2620231. The next prime is 2620259. The reversal of 2620253 is 3520262.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2474329 + 145924 = 1573^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 2620253 - 2⁸ = 2619997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2620259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310126 + 1310127.

It is an arithmetic number, because the mean of its divisors is an integer number (1310127).

2^2620253 is an apocalyptic number.

It is an amenable number.

2620253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2620253 is an equidigital number, since it uses as much as digits as its factorization.

2620253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2620253 is about 1618.7195556983. The cubic root of 2620253 is about 137.8630055457.

Subtracting 2620253 from its reverse (3520262), we obtain a palindrome (900009).

The spelling of 2620253 in words is "two million, six hundred twenty thousand, two hundred fifty-three".